Seattle daily post-intelligencer. [volume] (Seattle, W.T. [Wash.]) 1881-1888, 1887-11-20

NoconptFy on earth has purer water
than n afforded by our beautilui
springs, rivulets and rivers coming
from the mountains or table lands adj
jaccnt TO our valleys. And yet this
water is not distributed over the val
Ieys where the densest rural popula-
lion Is destined toexist, and where our
wells. sunk 10 the alluvial deposit, are
tinctnred with the deoayed vegetable
matter or iron, or both, rendering the
water unfit for use. IL is within our
knowledge where grave mistakes have
been made by farmers In both White
River and Puyallup valleys, in their
efforts 20 secure pure water and plenty
Of Il, and, la fact, smart under heavy
financial loss in consequence OF put
ting in too small pipe, improperly laid.
Hence, although too long by rights for
tins department, the following article
from the Country Gentleman is Of 50
much importance that We give il nearly
entire, and commend it TO the careful
reading and study Of the lessons taught
The writer says.
A good deal Of trouble occurs with
the water supply when this Is brought
lrom q distance through pipes. Most
III this trouble, Il not all OF Il, might
be avoided II the laws which regulate
the flow Of water through pipes were
understood, and the necessary precan-
tions we're undertaken. Water Is a
fluid. but Is yet practically a very solid
body. Ii cannot be compressed, has
no elasticity, and the force with which
4 small stream Of Il strikes any opp0s-
| ing body feels almost as hard as i =
/ rod Of wood we're used instead Of 8 rod
SO 10 speak-of water. Water IS ex-
reedingly adhesive not only by virtue
az its molecular attraction, but also by
the operation OF air pressure.
lis impossible, practically, % lay .
| stretch vi pipe several hundred feet
| long without az least some departure
/ nom A regular grade that viii be equal
q the diameter Of Che pipe, and when
MS happens the following conditions
/ result. Aswater Is not elastic and can
not he compressed, is passage through
4 Mrs Is precisely IKE that Of a rod q
non Of the same sise. II we should
draw an iron rod through an aperture
~ one inch faster than Il enters, TIM
| rod must be heightened. This happen:
when wire is made. 4 metal rod !
drawn throakk an orttice twice a. las
a. il enters. and the length Is neceSsa
NY doubled. and this happens pro
DortionAtely 70 the rapldity Wit
which the metal IS drawn through tn
Now when water fows through Al
tch pipe having certain fall or lead
II q things happen. The low = re
a. ae5 bv the adhesion q the water 4
u ~, inside a che pipe-thiS y com
,,,o,,lv called fricsiOn-and a ceytau
- q head and retardaton Of nos
c.eepT Henee. although stream .
J ,rstsr An inch ia diameter enters %
- a stream a quarter u an inch d
a,sn,etrr only viii escape a. the cthe
-,,.i ~ ! pipe GO feet long, and with
: ~ q IS 81 l6 fees. II the pipe Is quit
s,-s,,l,r aid. and there are no veFucs
s,n,,,ssities 81 bends in &, The flow vi
ro on nnintefruptedly.
Bat, g ] have said, = = itialossl0l
; practicaliy - lay = psps without
/ leass bends equal % ne aianlstef, AZ
!, this a the great trouble NiLa NAt.
pipes. more especially ~ me st.ii'sl e
E nj most Ia the hottest we1tnsr. Z.
d where chs water aoes not ~ tns ~
and tire stream neeess4Fl.4 tAfS
rrsduAily from the inlet g tlle cut.
..inr osslv one-foprth - iargc ~ =
n,s.s.f,e 81 he pipe a. Il y - ne tnsst
q - rrraries fhe vacant space. It
4 al i lresnelx elAst,se wee 49, -, a
= & warnasa In De ml4slie 2, : - s.
Y 1 - ths ahsoFPszon - nsAs y ~ =